Mechanical Ventilation Heat Recovery

Mechanical ventilation with heat recovery (MVHR) or Heating ventilation and cooling systems (HVAC) are a sensible and beneficial addition to a SIP Building System.

Mechanical Ventilation Heat Recovery Systems bring fresh air into the home or building and expel the moisture laden or stale air to the outside. Not only is ventilation practical, but a requirement in airtight constructions.

The diagram shows airflow through a typical application. It can be seen that as well as extracting pollution and moisture the unit provides fresh air from outside. Importantly as the fresh air is warmed by the heat exchanger, the relative humidity is lowered far below the level required for a dust mite infestation.

In this way all MVHR systems constantly refresh the internal environment replacing stale moist air with fresh, drier air. This means that a Build It Green SIP home provides a more comfortable and healthier living environment.

The Heat Exchanger Principle

At the heart of the MVHR system is a unique state-of-the-art lightweight heat exchanger which returns up to 70%-80% of the heat in the outgoing stale air stream. This valuable heat energy is transferred to the incoming fresh air supply. The airstreams do not mix and there is no cross-contamination.

Build It Green can calculate the optimum size of equipment required, choosing from a range of leading manufactures, to install the necessary system at a competitive price.

If you would like a MVHR system to be specified in your project, please indicate your requirement at the stage of your enquiry, using the Request a quote section, including your architectural plans and any other information.

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